Remodelling and extensions
construction company
Hammerl GmbH

Improve your personal space. We take care of the remodelling or extensions of your housing. Old buildings can gain a lot of attraction and space through attic conversions and extensions and thus improve the quality of living. Additions and conversions may retain an old building’s original charm whilst combining it with the benefits of modern structural engineering. We help you to keep costs low with detailed proactive planning.


Our range of services in the field of remodelling and extensions:


Free inspection and consultation


Cost estimates and packages of services

Implementation of all construction measures

Implementation of all professional work as a general contractor

Filing of static calculations


Attic conversions

Attic increases

Addition of further rooms

Wall and column modifications

Ceiling and roof modifications


Excavation and backfill works

Cellars and foundations

Supporting walls and underpinning constructions

Wine cellars and vault cellars (Repairs and constructions even with old brickwork)


We offer competent services for your reconstruction or renovation projects. You can reach us via phone or use the contact form.

Remodelling works

by professionals